Hammer Unions

Pacific Oilfield is one of Asia Pacific largest stockist for SARA Hammer Unions. We offer standard range from butt weld, threaded to sour service of various sizes and working pressures.

In addition, we have successfully developed our own range of PACOIL™ Hammer Unions catered to customers requiring custom designs, types and accessories. PACOIL™ Hammer Unions are interchangeable with current leading hammer union manufacturers.

General

Pacific Oilfield manufactures Hammer Unions from raw materials in the form of forgings or castings in accordance with service requirements in size 1" to 10" with ratings up to 20,000 PSI cold working pressure.

Interchangeability

Pacific Oilfield's Hammer Unions are interchangeable with WECO or other manufacturers adhering to the industry standards.

Thread Gauging

Acme thread and line pipe threads are gauged by standard plug & ring gauges.

Sealing Design

The conical and spherical surfaces of the female and male subs respectively form an effective metal-to-metal seal in case of low pressure services.

For medium pressure mostly an 'O' ring is provided in the male sub in addition to the metal to metal seal. For high pressure a lip type seal ring is provided for primary seal in the female sub.

The seal protects the secondary metal to metal seal from corrosion and limits fluid flow turbulence. For seal service applications vition seals are provided.

Quality Control

Pacific Oilfield's  unions are manufactured using modern manufacturing techniques to attain first class workmanship and dimensional control. Correctly chosen raw materials for a particular service together with correct heat-treatment process is used to ensure better service and longer life in extreme conditions.